Synthesis and characterization of SiO2/GO/Al2O3 nanocomposite adsorbent for the uptake of ciprofloxacin: isothermal and reusability studies

IF 2.2 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY Journal of the Iranian Chemical Society Pub Date : 2025-01-07 DOI:10.1007/s13738-024-03158-9

Prerna Higgins, Rajeev Kumar, Shaziya H. Siddiqui

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Abstract

Silicon dioxide/graphene oxide/aluminum oxide (SiO₂/GO/Al₂O₃) nanocomposite was prepared for the ciprofloxacin (CPF) drug adsorption. The characterization techniques involving field-emission-scanning-electron-microscopy (FE-SEM) determined the topography of the nanocomposite and high resolution transmission electron microscopy (HR-TEM) determined the particle size for SiO₂/GO/Al₂O₃. The EDX confirmed the elemental composition of the materials incorporated, while the X-RD analysis inferred the crystalline nature of SiO₂/GO/Al₂O₃. The FT-IR analysis showcased the role of the capping groups involved. The present study focuses on the adsorption of ciprofloxacin (CPF) drug onto SiO₂/GO/Al₂O₃ regarding kinetics, isotherm, thermodynamics studies, and factors, such as solution pH, temperature, concentration, and time. The outcome showed that the highest adsorption of CPF was observed onto the SiO₂/GO/Al₂O₃ composite at pH 6.0. Similarly, the utmost adsorptive capacity of 499.44 mg g⁻¹ was achieved in 180 min and 500 mgL⁻¹ CPF solution concentration. The CPF uptake on SiO₂/GO/Al₂O₃ was in coordination with the pseudo-second-order equation and Langmuir isotherm, respectively. The thermodynamic parameters ciphered that the uptake of the CPF drug was spontaneous. The drug was easily desorbed using 0.1 M (aq) ethanol solution for six adsorption–desorption cycles.

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来源期刊

Journal of the Iranian Chemical Society 化学-化学综合

CiteScore

4.40

自引率

8.30%

发文量

230

审稿时长

5.6 months

期刊介绍： JICS is an international journal covering general fields of chemistry. JICS welcomes high quality original papers in English dealing with experimental, theoretical and applied research related to all branches of chemistry. These include the fields of analytical, inorganic, organic and physical chemistry as well as the chemical biology area. Review articles discussing specific areas of chemistry of current chemical or biological importance are also published. JICS ensures visibility of your research results to a worldwide audience in science. You are kindly invited to submit your manuscript to the Editor-in-Chief or Regional Editor. All contributions in the form of original papers or short communications will be peer reviewed and published free of charge after acceptance.